3M™ Bristle Brush Flange holds together a minimum of seven 6 inch (152.4mm) radial bristle brushes for use on in-line sanders or bench motors with a shaft size of 1 inch (25.4 mm) diameter.
For in-line sander or bench motors with shafts smaller than 1 inch (25.4mm), a 3M™ Telescoping Wheel Flange Adapter can be inserted into the center hole to fit 1/2 inch (12.7mm), 5/8 inch (15.875mm), 3/4 inch (19.05mm) or 7/8 inch (22.23mm) shafts. When a greater thickness of bristle brush is needed, 3M™ Spindle Extender Adapters (Part No. 30134) can be added to increase the disc capacity of the flange adapter. These additional adapters are sold separately.